Abstract WebContents/NavigationController from core TabRestore code

chrome/browser/sessions/chrome_tab_restore_service_client.cc

Index: chrome/browser/sessions/chrome_tab_restore_service_client.cc
diff --git a/chrome/browser/sessions/chrome_tab_restore_service_client.cc b/chrome/browser/sessions/chrome_tab_restore_service_client.cc
index 760236aa6d6e421d44c13f8f852a6284695999e1..23e8855888c10e0f07e53007453276ad330774bd 100644
--- a/chrome/browser/sessions/chrome_tab_restore_service_client.cc
+++ b/chrome/browser/sessions/chrome_tab_restore_service_client.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/common/url_constants.h"
+#include "components/sessions/content/content_live_tab.h"
 #include "components/sessions/content/content_tab_client_data.h"
 #include "content/public/browser/browser_thread.h"
 
@@ -63,14 +64,15 @@ ChromeTabRestoreServiceClient::CreateTabRestoreServiceDelegate(
 }
 
 TabRestoreServiceDelegate*
-ChromeTabRestoreServiceClient::FindTabRestoreServiceDelegateForWebContents(
-    const content::WebContents* contents) {
+ChromeTabRestoreServiceClient::FindTabRestoreServiceDelegateForTab(
+    const sessions::LiveTab* tab) {
 #if defined(OS_ANDROID)
   // Android does not support TabRestoreServiceDelegate, as tab persistence
   // is implemented on the Java side.
   return nullptr;
 #else
-  return BrowserTabRestoreServiceDelegate::FindDelegateForWebContents(contents);
+  return BrowserTabRestoreServiceDelegate::FindDelegateForWebContents(
+      static_cast<const sessions::ContentLiveTab*>(tab)->web_contents());
 #endif
 }
 
@@ -92,13 +94,14 @@ bool ChromeTabRestoreServiceClient::ShouldTrackURLForRestore(const GURL& url) {
   return ::ShouldTrackURLForRestore(url);
 }
 
-std::string ChromeTabRestoreServiceClient::GetExtensionAppIDForWebContents(
-    content::WebContents* web_contents) {
+std::string ChromeTabRestoreServiceClient::GetExtensionAppIDForTab(
+    sessions::LiveTab* tab) {
   std::string extension_app_id;
 
 #if defined(ENABLE_EXTENSIONS)
   extensions::TabHelper* extensions_tab_helper =
-      extensions::TabHelper::FromWebContents(web_contents);
+      extensions::TabHelper::FromWebContents(
+          static_cast<sessions::ContentLiveTab*>(tab)->web_contents());
   // extensions_tab_helper is NULL in some browser tests.
   if (extensions_tab_helper) {
     const extensions::Extension* extension =
@@ -112,9 +115,9 @@ std::string ChromeTabRestoreServiceClient::GetExtensionAppIDForWebContents(
 }
 
 scoped_ptr<sessions::TabClientData>
-ChromeTabRestoreServiceClient::GetTabClientDataForWebContents(
-    content::WebContents* web_contents) {
-  return make_scoped_ptr(new sessions::ContentTabClientData(web_contents));
+ChromeTabRestoreServiceClient::GetTabClientDataForTab(sessions::LiveTab* tab) {
+  return make_scoped_ptr(new sessions::ContentTabClientData(
+      static_cast<sessions::ContentLiveTab*>(tab)->web_contents()));
 }
 
 base::SequencedWorkerPool* ChromeTabRestoreServiceClient::GetBlockingPool() {